Buttery smooth, slick performance all-round, and even with graphics intensive mobile games

iOS 8 is beautiful and simple and brings in tons of functionality upgrades

Better spotlight search which now also has wikipedia, itunes and other results

"Hey, Siri" trigger for Siri voice commands

Improved multitasking menu which now also has recent contacts

The Health app is the most extensive health based app to date, that can pick data from both internal sensors, and 3rd party peripherals, and acts as a centralized hub for all of the user's health stats, including anything from their activity, weight, and heart rate, to blood pressure, blood glucose, and vitamin intake - all this data is also easily shareable with your doctor

Enhanced keyboard functionality with QuickType word prediction

Support for 3rd party keyboards

Buttery smooth web browser

The Touch ID biometric touch sensor is the best, most accurate, most responsive fingerprint sensor around

Support for VoLTE - voice over LTE, to provide wideband high-quality calls, where network supported